Up to 4 skillchompas can be caught per trap, which scales with Agility level. From level 42 Agility, multiple are always caught.

Cobalt skillchompas can be attacked and explode when killed. If the attacking player is next to the skillchompa when it explodes, they will be pushed back 1 square and dealt 20 life points of ranged damage (this cannot be mitigated by Prayer). Players hunting these skillchompas should take care, as clicking on one will cause the player to attack it. A player can avoid this entirely by equipping a Ranged or Magic weapon without ammunition, or by selecting the "Hidden" option under the NPC Attack Option Settings.